Road structure



Jul 12, 1938.- E M TANLEY 2,123,480

ROAD STRUCTURE Filed April 22, 1937 I 1 I n v Inventor Java/wank; v

I g umm A iiorneys Patented July 12, 1938 UNITED STATES PATENT oFFicEROAD STRUCTURE Elisha M. Stanley, Parkesburg, Pa.

Application April 22, 1937, Serial No. 138,408

2 Claims.

My invention relates to road building and more particularly toimprovements in road beds for highway roads.

The principal object of my invention is to provide a road structure androad bed therefor rendering the road structure waterproof at the bottomand sides thereof and adapted to deflect water rising underneath theroad bed, or settling thereunder, to the sides of the structure fordrainage through the usual ditches at the sides of the road.

Another object is to provide a road structure which may be easily andeconomically built, is impervious to water at the top, bottom and sidesthereof and which will not crack or buckle under the action of frost.

To the accomplishment of the above, and subordinate objects presentlyappearing, a preferred embodiment of my invention has been illustratedin the accompanying drawing, set forth in detail in the followingdescription, and defined in the claims appended hereto.

In the said drawing:

Figure 1 is a View in transverse section of a road structure embodyingmy improvements, and

Figure 2 is a fragmentary detail view in transverse section.

Describing my invention in detail, with reference to the drawing bynumerals, in the illustrated embodiment thereof the road structure of myinvention comprises a casing-like base, or bed, guard I of galvanizedtin or other suitable metal impervious to rust having opposed verticalside flanges 2 and a bottom 3 of inverted. cone shape in cross section.The guard I is sunk into the ground represented at 4 with the upperedges of the flanges 2 flush therewith. Ditches 5 are dug along side theflanges 2. At the angles of the guard Ithe metal is joined together byelectric welding as indicated in Figure 2, at 6. Within the guard I is abottom layer 1 of earth upon. which are built up bottom, intermediateand top layers or laminations, 8, 9 and Ill, respectively, of cement, orasphalt, and stone, the stone being graduated in size throughoutsuccessive layers. In the bottom layer 8 the stones are relativelylarge, in the intermediate layer 9 smaller, and in the top layer Iflchipped stones, or stone dust,

is utilized. The bottom layer 8 is sunk into the layer 7 of earth andformed with beveled side edges II spaced from the bottom 3 of the guardI parallel therewith for freedom for expansion under differenttemperatures. The intermediate layer 9 and the top layer It extend. tothe side flanges 2. The top surface of the upper layer I0 is crowned inthe usual manner and tapers to the side flanges 2 flush with the upperedges of the latter. 10

As will now be seen, the described road structure is rendered imperviousto the action of water at the bottom and sides thereof by the guard Iand similarly protected at its top by the material of the top layer I0.Any water accumulating under the structure, as from springs isdeflected, in rising to the surface, by the guard I, to the ditches 5.The invention will, it is believed, be understood from the foregoingdescription therefore without further explanation.

Manifestly the invention is susceptible of modification, as regardsdetails described, without departing from. the inventive concept andright is herein reserved to all such modifications falling within thescope of the claims appended hereto.

What I claim is:

1. A road structure comprising a casing-like guard of galvanized metalincluding side flanges and a bottom of obtuse angled shape in crosssection, respectively, and adapted to be embedded in the ground, a layerof earth in said guard, and a laminated structure of cement and stonebuilt up on said layer, the lowermost lamination being spaced at itsside edges from said flanges, and the remaining laminations fittingagainst the said flanges.

2. A road structure comprising a casing-like guard of galvanized metalincluding side flanges and a bottom of obtuse angled shape in crosssection, respectively, and adapted to be embedded in the ground, a layerof earth in said guard, and a laminated structure of cement and stonebuilt up on said layer, the lowermost lamination being spaced at itsside edges from said flanges, and the remaining laminations fittingagainst the said flanges, and ditches extending along said side flanges.

ELISHA M. STANLEY.

